/*
 * Copyright 2008 the original author Ang Gao.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * IRService.java 2008-11-25
 */
package ie.ucc.cs.anggao.finalproject.client.service;

import ie.ucc.cs.anggao.finalproject.client.model.Query;
import ie.ucc.cs.anggao.finalproject.client.model.QueryEssay;
import ie.ucc.cs.anggao.finalproject.client.model.SearchEngineResult;

import java.util.List;

import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.ServiceDefTarget;

/**
 * @author GaoAng
 * 
 */
public interface IRService extends RemoteService {

	List<SearchEngineResult> getSEresult(Query query);

	Query getSEquery(QueryEssay query);

	/*
	 * Singleton Design Pattern
	 */
	public static final class IR {
		private static IRServiceAsync service;

		public static IRServiceAsync getInstance() {
			if (service == null) {
				service = GWT.create(IRService.class);
				((ServiceDefTarget) service).setServiceEntryPoint(GWT
						.getModuleBaseURL()
						+ "IRService");

			}
			return service;
		}
	}

}
